In a process called photosynthesis, plants use carbon dioxide and water, along with energy from sunlight, to produce sugar and oxygen. Photosynthesis is represented by the equation 6CO2+6H2O---> C6H12O6+6O2.
What must a plant need to produce 4 molecules of sugar?
6 molecules of CO2
6 molecules of H2O
18 molecules of CO2
24 molecules of H2O